Gas Chromatography (GC) is a method used to separate volatile compounds in gaseous samples. The system uses a gaseous mobile phase to push the sample through a column, where different compounds are separated based on their physical and chemical properties. GC systems are essential in industries like petrochemical analysis, environmental testing, and forensic science. These systems allow for the identification and quantification of chemical components, making them indispensable for high-precision analyses, often paired with advanced detectors like GC-MS for even greater sensitivity.